Thill-coupling



(ModeL) v v H. K. FORBIS.

THILL COUPLING.

Patented Oct. 4, 1881.

9 INVENTOR:

' WITNESSES:

ATTORNEYS.

UNITED STATES PATENT OFFICE.

HARBERT K. roEBIs, on DANVILLE, ASSIGNOR .To HIMSELF AND GEORGE F. LUPTON, OF GEORGETOWN, KENTUCKY.

THiLL-COUPLING.

SPECIFIGATIOlN forming part of Letters Patent No. 247,897, dated October 4,

I Application filed Angnstlfl, 1881. (lldodeL) To all whom it may concern:

Be it known that I, HARBERT K. FoRBIs, of Danville, in the county of Boyle and State of Kentucky, have invented a new and Improved Thill-Goupling, of which the following is a full, clear, and exact description.

The object of my invention is to provide a new and improved thill-coupling which is so constructed that the thill will be held firmly I to the shaft and coupling and uncoupling of the thill is greatly facilitated.

The invention consists in an angular thill bolt or pintle the free end of which rests against the axle and is locked on the same by T5 a spring-latch on the axle.

In the accompanying drawings, Figure 1 is a perspective view of my improved thill-coupling, parts being shown in section. Fig. 2 is a cross'sectional elevation of the same. Fig.

2e 3 is a longitudinal sectional elevation of the spring-latch.

Similar letters of reference indicate corresponding parts. I

The eye A at the end of the thill B tits in between thejaws O ofthe clip 1), held on the axle E in the ordinary manner by means of a strip, F, and bolts G. The belt or pintle H is passed through the apertures in the jaws O and through-the eye A, and an angular arm,

0 J, of this bolt B rests against the axle E and is held against the same by a sliding bolt, K, surrounded by a spiral spring, L, contained in a casing, M. the arm J is beveled from the'upper to the lower edge, and the other end of the bolt is provided with a knob, N. A transverse strip, 0, of the casing L passes through a longitudinal slot, P, of the bolt and prevents this bolt from turning. The casing M is attached to a 0 rounded strip, Q, fastened to the axle E.

It the thill B is to be removed, the bolt R is drawn in the direction of the arrow at, so as to release the arm J, which is turned in the direction of the arrow 1), upon which the bolt 5' H is withdrawn.

To fasten the thill to the axle, the bolt H is The end of the bolt K holding.

the inverse direction of the arrow a and will hold the arm J against the axle, thus locking the bolt in its position in the eye A and the aperture in the jaws O. The thill is thus held firmly to the axle, can be coupled or uncoupled 'very readily and conveniently, and cannot become uncoupledaccidentally. The jaws O are connected by a strip, S, at their lower edges,- whereby a box for the eye A is formed.

Having thus fully described my invention, what I claim as new, and desire to secure by 6 Letters Patent, is-

1..A spring-latch, in combination with the angular belt of a thill-coupling, substantially as herein shown and described, and for the pur-- pose set forth. 7o

2. In a thill-coupling, the combination,with the jaws O, the eye A,- and the angular, bolt H, of the spring-latch boltK on the axle, substantially as herein shown and described, and for the purpose set forth.

3. In a thill-coupling, the coinbinatiomwith the jaws O,the eye A, and the angular bolt H, oi the bolt K, the spring L, and the casing M, attached to the axle E,substantially as herein shown and described, and for the purpose set forth.

4.. In a thill-coupling, the combination,with

thejaws G, the eye A, and the angular bolt H,

of the catch K, the spring L, the casing M, and the cross-piece O,passing through a longitudinal slot, P, in the bolt K, substantially as herein shown and described, and for the purpose set forth.

- HARBERT K. FORBIS. Witnesses:

J. W. PROGTOR, J. M. WALLACE. 

